Exam 2

Front 1

Where are carbohydrates located?

Back 1

Outside the membrane

Front 2

Carbohydrates serve as

Back 2

recogniton sites for other cells and molecules

Front 3

Carbohydrates bond

Back 3

Covalently bonded to lipids or protiens

Front 4

Glycolipids

Back 4

Carbohydrates covalently bonded as lipid

Front 5

Glycoprotiens 1

Back 5

a carbohydrate covalently bound to a protien

Front 6

glycoproteins 2

Back 6

usually oligosaccharides chains no more than 15 lengths

Front 7

glycoproteins 3

Back 7

recognizable to other cells and proteins

Front 8

basis of cell-to-cell adhesion

Back 8

oligosaccaride of one cell can bind to a mirror image on adjacent cell

Front 9

Processes that allow cells to arrange in groups

Back 9

cell recogniton
cell adhesion

Front 10

Cell recogntion

Back 10

one cell specifically binds to another cell of a certain type

Front 11

Cell adhesion

Back 11

relationship between two cells is "cemented"

Front 12

Cell recognition and adhesion depend on

Back 12

membrane proteins

Front 13

Membrane glycoprotein is responsible for

Back 13

cell recogniton and adhesion in sponges

Front 14

Binding of cells is either

Back 14

homotypic or heterotypic

Front 15

Homotypic `

Back 15

the same molecules stick out of both cells and the exposed surfaces bind to each other

Front 16

Cell adhesion protiens

Back 16

can initiate the formation of specalized cell junctions

Front 17

Tight Junctions

Back 17

specailized structures at the plasma membrane that link adjacent epithilial cells

Front 18

Tight Junctions 2

Back 18

result from mutual binding of strans of specific membrane proteins, which form a series of joints, encircling in each epithilial cell

Front 19

Tight Junctions Two Functions

Back 19

-prevent substances from moving through the spaces between cells
-restrict the migration of membrane proteins and phospholipids from one region to another

Front 20

Tight Junctions Help

Back 20

ensure the directional movement of materials into the body

Front 21

Desmosomes

Back 21

-specailized structures associated w/ plasma membrane
-hold adjacent cells firmly together acting like spot welds or rivits

Front 22

Plaque

Back 22

-dense structure on the cytoplasmic surface of the plasma membrane
-is attatched to special cell adhesion proteins in plasma membrane

Front 23

Plaque is attatched to

Back 23

intermidate fibers in the cytoplasam

Front 24

Plaque is made up of

Back 24

Keratin

Front 25

Keratin Function

Back 25

-structure from one cell to other
-anchored on bottom
-provide mechanical stability to epithilal tissue

Front 26

Gap Junction

Back 26

are a means of communication

Front 27

Tight Junctions and desmosomes

Back 27

have mechanical role

Front 28

Gap Junctions 2

Back 28

Faciliate comunication between cells

Front 29

Gap Junctions are made up of

Back 29

specialized protein channels, called connexons

Front 30

Connexons

Back 30

span the plasma membrane of two cells and intracellular space between